| 基于GIS的黄土丘陵半干旱区退耕还林还草决策系统应用 |
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| 引用本文： | 马瑞,蒋志荣,王继和,魏怀东,丁峰,周兰萍.基于GIS的黄土丘陵半干旱区退耕还林还草决策系统应用[J].甘肃农业大学学报,2006,41(6):75-78. |
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| 作者姓名： | 马瑞 蒋志荣 王继和 魏怀东 丁峰 周兰萍 |
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| 作者单位： | 1. 甘肃农业大学林学院,甘肃,兰州,730070
2. 甘肃省治沙研究所,甘肃,武威,733000 |
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| 基金项目： | 甘肃省科技攻关项目(QS031-031-02)，基于“3S”技术的退耕还林还草决策与评估系统研究 |
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| 摘 要： | 在GIS及相关软件支持下,对甘肃省定西市安定区土地利用和土壤侵蚀的相关图件进行几何校正和数字化等一系列处理,获得土地利用类型和土壤侵蚀强度的空间数据,并由安定区等高线生成坡度数据.将土地利用类型数据与坡度数据、侵蚀强度数据先后进行叠加,形成包括三者所有属性的空间数据库,并从中提取满足退耕还林条件的数据,从而确定退耕还林还草地和荒山造林地的面积及其空间分布.
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| 关 键 词： | GIS 退耕还林还草 面积 空间分布 黄土丘陵半干旱区 |
| 文章编号： | 1003-4315(2006)06-0075-04 |
| 修稿时间： | 2005年11月20 |
Application of decision support system based on GIS for returning farmland to forestland or grassland in the loess hill semi-arid region |
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| MA Rui,JIANG Zhi-rong,WANG Ji-he,WEI Huai-dong,DING Feng,ZHOU Lan-ping.Application of decision support system based on GIS for returning farmland to forestland or grassland in the loess hill semi-arid region[J].Journal of Gansu Agricultural University,2006,41(6):75-78. |
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| Authors: | MA Rui JIANG Zhi-rong WANG Ji-he WEI Huai-dong DING Feng ZHOU Lan-ping |
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| Abstract: | By using GIS technology,through a series of processing including geometrical calibration and digitization to the correlative maps to land use and soil erosion,the land use types and soil erode intensity data have been obtained.The slope data of the research area were derived from contour line.And then the three data were successively superposed to form another special database which including their all attributes,and the data which meet the need for returning farmland to forestland or grassland have been extracted,sequentially to confirm the area and spatial distribution. |
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| Keywords: | GIS returning farmland to forestland or grassland area spatial distribution loess hill semi-arid region |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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